Weather

Philadelphia Weather Data

Curious about what the weather was like in Philadelphia years ago? Our historical weather data offers a look back in “weather time” and is updated monthly to capture new information collected from our rooftop weather station.

What is a Hurricane?

A hurricane is a tropical cyclone with maximum sustained winds of at least 74 miles per hour. Learn more

$The Sun as observed through The Franklin Institute's 10-inch Zeiss Refracting Telescope$

Visit the Observatory

Sunrise

6:31 am

Sunset

7:35 pm

Moon phase

Waning crescent

Powered by Dark Sky

Take a look at the sun through our historic Zeiss refracting telescope and learn more about telescopes and astronomy
(Weather Permitting)

Benjamin Franklin and the Gulf Stream

Benjamin Franklin was the first person to chart one of the world's most important ocean currents.

Changing Earth

Explore the forces that shape the weather in The Franklin Institute's Changing Earth exhibit.

Franklin's Lightning Rod

Learn the history of Franklin's Lightning Rod and the spark of Benjamin's curiosity.

The Kite and Key Experiment

Discover the true story of one of Benjamin Franklin's most recounted scientific experiments.

Live Science

Today, we’re paying more attention to the weather than ever before. In the CBS 3 Weather Show, one of our Live Science shows, you will learn the three main ingredients that create weather, as well as some strategies to adapt to the ever changing climate around us.